随笔分类 -  pandas库

pandas中loc和iloc
摘要：先随机生成一个DataFrame： import numpy as np import pandas as pd # 随机生成4*4矩阵 metrix = np.random.randint(1, 20, (4,4)) df = pd.DataFrame(metrix, index=['a', 'b 阅读全文
posted @ 2020-07-16 09:33 夜月花 阅读(182) 评论(0) 推荐(0)